Isak Borg, the First Secretary of Sweden, resides in Pyongyang. Though he is a diplomat, Borg has been secretly meeting SEO Bok-joo, a local traffic security officer. One day, after a suspicious man visited their secret meeting place, Bok-joo suddenly disappeared. With only a short time left before he is due to return home, Borg begins a frantic search for Bok-joo, eventually becoming suspicious of his interpreter, LEE Myung-jun...